The 2011 Missouri Valley Conference men's basketball tournament, popularly referred to as "Arch Madness", as part of the 2010-11 NCAA Division I men's basketball season, was played in St. Louis, Missouri, March 3–6, 2011, at the Scottrade Center.
The championship game was broadcast live on CBS on Sunday, March 6, at 1:05 pm CST.
The tournament's winner received the Missouri Valley Conference's automatic bid to the 2011 NCAA Men's Division I Basketball Tournament After coming from behind in each their first two games, the #1 seed Missouri State Bears fell short to #3 seed Indiana State.
Indiana State, who had needed a buzzer-beater against Evansville in the first round, made their first NCAA tournament appearance in a decade.
They also defeated #2 seed Wichita State in the semifinal, en route to only their third NCAA Tournament since the Larry Bird-led Sycamores.